Al-Mansur

al-Mansur (714-775) was the Caliph of the Abbasid Caliphate from 754 to 775, succeeding as-Saffah and preceding al-Mahdi.

Biography
al-Mansur was the son of Muhammad ibn Ali. al-Mansur was related to Muhammad through his second great-grandfather Abbas ibn Abd al-Muttalib, the uncle of Muhammad. al-Mansur became the second caliph of the Abbasid Caliphate after the death of his brother as-Saffah, and he consolidated the strength of the caliphate, killing the ruler of Iran and Transoxiana Abu Muslim to prevent a power struggle in the caliphate. al-Mansur reigned until 775, when he died and al-Mahdi succeeded him.